<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>cipher-check</title>
</head>
<body>
<h1>口令对接</h1>
<form action="/check" method="post">
<label for="cipher">口令：</label>
<input type="text" id="cipher" name="cipher"><br><br>
<input type="submit" value="提交">
</form>
</body>
</html>